Home / 20,315,218.96-28,035,810.48-11,148,189.76

Finding the Fourth Proportional to 20,315,218.96, 28,035,810.48 and 11,148,189.76

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Solution

The fourth proportional to 20,315,218.96, 28,035,810.48 and 11,148,189.76 is: 15,384,945.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,315,218.96 : 28,035,810.48 = 11,148,189.76 : x
  2. Step 2: Convert to fraction form
    20,315,218.96/28,035,810.48 = 11,148,189.76/x
  3. Step 3: Cross multiply
    20,315,218.96x = 28,035,810.48 × 11,148,189.76
  4. Step 4: Simplify right side
    20,315,218.96x = 312,548,535,306,436.69
  5. Step 5: Solve for x
    x = 312,548,535,306,436.69/20,315,218.96
  6. Step 6: Final answer
    x = 15,384,945.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.